I’ve made that trip many times and I generally ignore the weather. We take 40 to OK City, then 44 and 70 to Ohio. Late November on gets more attention because they can get some bad winter storms along I-40. March is windy, but I think tornado season is a little later. We went to Oklahoma City in May and barely missed the Moore Tornado that did so much damage. I hardly watch tv, but I’m an avid watcher in OK and it’s always the weather channel. Mainly watching to see if I need to be prepared to look for a bolt hole.